3. Molding and Calibration After the extrusion process, the molten plastic enters a calibration unit, where it is shaped into the desired diameter and wall thickness. This unit often uses a vacuum or pressure system to ensure the pipe maintains its shape and dimensions during the cooling process.
4. Construction and Structural Applications Besides fluid transportation, line steel pipes find applications in construction, where they serve as structural supports, scaffolding, or for use in various construction projects.
